tuplet number shifted away from beam w. articulations

[anders . vinjar]

When placing tuplet numbers wo. brackets at beam-end, the placement is
shifted if there's an accent placed somewhere else along the beam:

tuplet-numbers-at-beam-end.preview.png
Description: PNG image

tuplet-numbers-at-beam-end.ly
Description: Binary data

Using \override Script.outside-staff-priority = #0 (or any number it
seems) moves the number down to the beam again.

Q: should the tuplet-number wo. bracket go down to the beam when there's
nothing there to collide with?  If so, any clue about how to get that?

Cheers,

-anders